Music-leaf turner.



LI. MQGUIRE. MUSIU LEAF TURNER.

APPLICATION rlmmun. 15, 1909.

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2 SHEETS-SHEET 1.

Patented Apr. 12, 1910.

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MUSIC LEAF TURNER.

APPLIOATION FILED JAN. 15, 1909.

955,093, Patented A r. 12,1910.

2 SHEETSSHEET 2.

VWEEEEEE: THVEDIEJP JEIHEE E MEGUIPE @zzw 7n @azzzw, N1Tf@ JAMES F.MCGUIRE, OF CHICAGO, ILLINOIS.

MUSIC-LEAF TURNER.

Specification of Letters Patent.

Patented Apr. 12, 1910.

Application filed January 15, 1909. Serial No. 472,514.

To all whom it may concern:

Be it known that I, JAMES F. MCGUIRE, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented new and useful Improvements in Music-Leaf Turners, of which thefollowing is a full, clear, concise, and exact description, referencebeing had to the accompanying drawings, forming a part of thisspecification.

My invention relates to music leaf turners and contemplates an improvedstructure whereby the desired manipulation of the leaves of theprevailing four page folio may be greatly facilitated.

It is particularly the object of my inven tion to provide a structurewhich will be of simple design, which will constitute a minimum numberof easily assembled parts, and wherein the operation will be simple andeffective.

Simplicity and most general usefulness being, at once, the importantpurposes in the design of my invention, I have chosen to limit the chiefadaptability thereof to the popular folio of a few pages which comprisesan outside folder and an inner loose sheet, the structure of myinvention providing etficient means whereby this loose sheet may beturned from side to side to properly and regularly display thesuccessive pages.

This description will be more readily understood by reference to theaccompanying drawings wherein a device embodying the features of myinvention is illustrated.

In these drawingsFigure 1 is a side elevational view of the device of myinvention, showing its attachment to a piano case; Fig. 2 is a frontelevational view thereof, the attaching member being removed; Fig. 3 isa plan view of the device; Fig. 4: is a horizontal sectional view on theline 44 of Fig. 2; Fig. 5 is a rear elevational view of the attachingmember; Fig. 6 is a longitudinal sectional View of part of the operativeelements thereof; and Fig. 7 is a cross-sectional view thereof, theouter parts being shown in section on the line 7 of Fig. 6.

Like reference characters are applied to the same parts throughout thevarious figures.

The device of my invention comprises pr1 marily a stationary element forattachment to an instrument case and a movable element for carrying theloose sheet. The stationary element consists of a substantially uprightresistance framework 8, and provided at the bottom thereof, a trough 9,in which trough the folio may be set to rest against the frameworkproper. At the top of the framework 8 there is provided the centrallydisposed flange 10 and at the bottom of the framework there is providedthe registering flange 11. In these flanges 10 and 11 regis teringopenings are provided in which openings a rotatable tube 12 isjournaled. This tube has rigidly secured thereto at the top thereofimmediately above the flange 1-0, a radially extending arm 13, which, aswill be hereinafter described, performs a function as one member of aclamping arrangement for gripping the loose sheet. Disposed inside thistube 12 and rotatable relative thereto is an actuating shaft 14, theupper end of which is reduced as shown at 15. The reduced portion 15 ofthe actuating shaft has fiat sides to correspond to a similar opening inthe hub of the radially extending arm 16, the opposite clamping member,thus insuring positive operative engagement between these two last namedparts. The hubs of the radial arms 13 and 16 are reduced in thickness sothat the clamping parts thereof may register properly, all as shown inthe drawings. The reduced portion 15 is provided with screw threads, asindicated, and takes into a clamping nut 17 which clamps the partsfirmly together, as clearly shown in Fig. 6.

The lower end of the shaft 14 carries a radial arm 18 which is rigidlyattached by means of a cotter pin 19. This arm 18 is provided with anactuating handle 20, and it is now apparent that any movement of thisactuating handle will effect corresponding movement of the arm 16 of theclamping arrangement. The lower end of the tube 12 is provided with theradially extending arm 21, which is operatively secured to the tube bymeans of the cotter pin 22, being held in place between the flange 11and the arm 18. The arm 21 is provided with the actuating handle 23.

The diameter of the tube 12 is slightly increased at the lower endthereof, as indicated at 21, and in this enlarged portion a helicalspring 25, surrounding the shaft 11, is disposed. One end of this springis attached to the shaft, as shown at 26 in Fig.

6, and the other end is attached to the tube 12 by way of the cotter pin22, as shown in said view. It is apparent now that there are twooperative elements, one comprising the clamping arm 13, the tube 12, andthe actuating arm 21, and the other comprising the clamping arm 16, theshaft 1% and the arm 18. It is further evident that these two operativeelements have a tension connection. The tension is arranged so as todraw the two members of the clamping arrangement together, thus,incidentally, separating the actuating handles. The handles 20 and 23are normally relatively in the position best shown in full lines, Fig.f, and it is apparent that, if the two actuating arms are broughttogether to the position shown in Fig. (3, the clamp comprising the arms13 and 16 will be opened against the tension of the spring. Subsequentrelease of the handles will permit the spring to bring the clampingmembers together. Rocking movement imparted to either of the handleswill effect the movement of the entire movable element from one side tothe other. Thus the actuating element of the device has an inherentactuation and also a bodily move ment from side to side relative to theframework, to secure the turning of the leaf.

The primary framework 8 is provided at its upper end with the downwardlyextending ears 27, 27, beneath which the outer folder of the music foliomay be disposed after having been set in the trough 9. The remainingloose sheet, which is usually found in music of the character to whichmy invention is particularly adapted, is placed between the clampingarms 13 and 16 after the same have been separated by the actuation ofthe handles 20 and 23, their release effecting theproper gripping of thesheet. Vhile this popular style of folio is of substantially uniformsize, in order that the device may be adapted to the slightly varyingsizes, which are likely to occur, the arms 13 and 16 are each providedwith the downwardly extending lugs 28, 28 which coact-to grasp the loosesheet, as is shown in dot-and-dash lines in Fig. 2. The outer folder isshown in dotted lines and the loose sheet is shown as raised slightly inorder to escape the side of the trough in swinging.

To attach the device to a piano case, the following structure isprovided (Figs. 1 and 5): An upright angle member 29 is provided at itsupper end with lugs 30, 30, which are adapted to fit within the keepers31, 31, on the framework proper. The lower end of this member 29 has thelaterally extending toes 32, 32, which are provided with felt or rubbersleeves 33, 33, to avoid marring the instrument case. Extending from themember 29 in the opposite direction to that of the toes 32, 32, is anauxiliary catch member 34:, which is similarly provided with a yieldingsleeve 35 for the purpose of protection, this auxiliary member beingadapted to fit over the music ridge usually found on an instrument ofthis kind and indicated at 36 in Fig. 1. Mounted upon the rear of themember 29 is a second angle member 37, this member being adj ustably setby way of the rivet 38 which slides in a slot 39 in the member 2: A bolt10 is provided upon the member 37 and has a thumb nut 4-1 in threadedengagement therewith, this bolt operating in a slot 42 in the member 29,as indicated in Fig. 5. Thus, the men'iber 37 may be adjusted into anydesired position to the extent of the length of the slots 35) and 12 andmay be so secured by means of the thumb nut 11. The lower end of themember 37 is provided with the laterally extending toe 43, which iscovered with a sleeve 4% of yielding material, and this member 1-3 isadapted to fit beneath the swinging panel 1-5 usually found in moderninstruments of this character. The swinging panel, as is usual in theart, is swung about its pivot 46 by means of a. mechanism operated bythe keyboard cover (not shown) and terminating in an abutment piece 47.It is now apparent that the members 43 and 32 may be spaced to adapt thedevice to the required distance in any instrument and that it may be setin place and so held by the swinging panel when the keyboard cover hasbeen opened.

In operation the successive display of the pages would be as follows:The loose sheet would be initially placed on the right hand side 2);this would present pages 1 and 2 of the folio to view. \V hen thesepages have been read the operator may quickly rock the actuating handlesand the loose sheet will be turned to expose pages 3 and 4.

I claim as new and desire to secure by Letters Patent:

1. In a music leaf turner, in combination, a relatively stationaryframework, two independently swinging members pivoted substantiallyconcentrically upon said framework, and tension means for yieldinglyconnecting said swinging members to form a clamp.

In a music leaf turner, in combination, a relatively stationaryframework, a pair of independently swinging members pivotedsubstantially concentrically upon said framework, and tension meansoperative between said members so that they may coact to form a clamp,said members being arranged to swing together as a unit relative to saidframework.

3. In a music leaf turner, in combination, a relatively stationaryframework, a pair of independently swinging arms pivoted substantiallyconcentrically upon said framework and arranged to co-act to form aclamp, a tension structure operating between said arms, and an operatinghandle for each of said arms.

4. In a music leaf turner, in combination, a relatively stationaryframework, a pair of independently swinging clamp members pivotedsubstantially concentrically to said framework, and a spring operativebetween said clamp members.

5. In a music leaf turner, in combination, a relatively stationaryframework, a pair of independently swinging clamp members pivotedsubstantially concentrically to said framework, a spring operativebetween said clamp members, and an actuating handle for each of saidclamp members.

6. In a music leaf turner, in combination, a relatively stationaryframework, a pair of independently swinging clamp members pivotedsubstantially concentrically to said framework, a tension member formaintaining said clamp members together to grip a sheet, and operatinghandles for said clamp members to facilitate manipulation of said clampmembers relative to each other and their simultaneous movement relativeto the framework.

7 In a music leaf turner, in combination, a relatively stationaryframework, a tube rotatably mounted in said framework, an arm secured tosaid tube, a shaft rotatably mounted within said tube, an arm secured tosaid shaft, said arms being arranged to co-act as a clamp, and tensionmeans for maintaining said arms together.

8. In a music leaf turner, in combination, a relatively stationaryframework, a tube rotatably mounted in said framework, an arm secured tosaid tube, a shaft rotatably mounted within said tube, an arm secured tosaid shaft, said arms being arranged to co-act as a clamp, and a springdisposed within said tube and surrounding said shaft and having its endsconnected with the shaft and tube respectively to maintain said armstogether.

9. In a music leaf turner, in combination, a relatively stationaryframework, a pair of substantially concentrically mounted shafts,radially extending arms at the upper ends of said shafts, tension meansoperating between said shafts for maintaining said arms together, and ahandle at the lower end of each shaft.

10. In a music leaf turner, in combination, a relatively stationaryframework, means for attaching said framework to an instrument case, apair of independently swinging arms pivoted substantially concentricallyupon said framework, and tension means for yieldingly connecting saidswinging members to form a clamp.

11. In a music leaf turner, in combination, a relatively stationaryframework, two independently swinging members pivoted substantiallyconcentrically upon said frame work, lugs extending downwardly from saidswinging members to grasp the leaf, and tension means for yieldinglyconnecting said swinging members to form a clamp.

In witness whereof, I have hereunto subscribed my name in the presenceof two witnesses.

JAMES F. MCGUIRE.

Witnesses:

JOSEPH P. MoGUIRE, J AMES MCGUIRE, Sr.

